answer this with method
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Solution:
It is given that,
x+1/x = 12 -----(1)
(x-1/x)² = (x+1/x)² - 4
= 12² - 4
= 144 - 4
= 140
x - 1/x = √140
Therefore,
Option (A) is correct
••••
arnav903:
how
-4 come
(a-b)² = (a+b)² -4ab
is it clear
Here , 4ab = 4*x*1/x = 4
yes
Answered by
1
Hey !
Refer the below attachment !
Thanks !
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